As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER RAISING THE LANDING GEAR HANDLE, IT WAS DISCOVERED THAT THE NOSE GEAR DOORS DID NOT OPEN AND THE NOSE GEAR DID NOT MOVE. LANDING GEAR SELECTOR VALVE WAS FOUND TO HAVE FAILED. REPLACEMENT OF SELECTOR VALVE CORRECTED THE DISCREPANCY.